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Alan3354 answered: 30963 problems
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Complex_Numbers/577123: 7-9yi = 8x +12i 1 solutions Answer 370106 by Alan3354(30983)   on 2012-02-23 18:33:51 (Show Source): You can put this solution on YOUR website! 7-9yi = 8x +12i -------------------- Do you have a question?

Equations/577109: x is 1 and y is -2 then if x is 5 what is y?!?!?! 1 solutions Answer 370104 by Alan3354(30983)   on 2012-02-23 18:27:44 (Show Source): You can put this solution on YOUR website! x is 1 and y is -2 then if x is 5 what is y?!?!?! --------- Insufficient info.

Distributive-associative-commutative-properties/577171: x squared -20x -51 i have to factor this and i don't understand how.. x^2-20x-51 1 solutions Answer 370102 by Alan3354(30983)   on 2012-02-23 18:26:24 (Show Source): You can put this solution on YOUR website! x squared -20x -51 i have to factor this and i don't understand how.. x^2-20x-51 ------------ It's not factorable.

Linear-systems/577131: Explain Systems of linear Equations for a dummie 1 solutions Answer 370101 by Alan3354(30983)   on 2012-02-23 18:25:28 (Show Source): You can put this solution on YOUR website! Try google

Distributive-associative-commutative-properties/577142: What are step by step instructions for how to do 2(-2+y)+y=8 ? 1 solutions Answer 370100 by Alan3354(30983)   on 2012-02-23 18:24:57 (Show Source): You can put this solution on YOUR website! What are step by step instructions for how to do 2(-2+y)+y=8 ? -------------- Define "do"

test/577140: What's ten times ten 1 solutions Answer 370099 by Alan3354(30983)   on 2012-02-23 18:24:06 (Show Source): You can put this solution on YOUR website! What's ten times ten ------------ 77? 134? ---------- You have a great future in comedy.

Quadratic-relations-and-conic-sections/577145: please help me solve this equation: 3x^2+6x+5y^2-20y-13=0 1 solutions Answer 370097 by Alan3354(30983)   on 2012-02-23 18:22:55 (Show Source): You can put this solution on YOUR website! please help me solve this equation: 3x^2+6x+5y^2-20y-13=0 -------- It's 1 eqn in 2 variables, x & y There are an infinite # of solutions, no unique solution.

Proportions/577141: The figures are both regular octagons. The smaller one has a side length of 4 and the larger one has a side length of 9. What is the ratio of the perimeter of the smaller figure to the perimeter of the larger figure? 1 solutions Answer 370096 by Alan3354(30983)   on 2012-02-23 18:21:26 (Show Source): You can put this solution on YOUR website! The figures are both regular octagons. The smaller one has a side length of 4 and the larger one has a side length of 9. What is the ratio of the perimeter of the smaller figure to the perimeter of the larger figure? ---------- 4 to 9

test/577152: 5*7*8 1 solutions Answer 370095 by Alan3354(30983)   on 2012-02-23 18:20:19 (Show Source): You can put this solution on YOUR website! 5*7*8 --------- Do you have a question?

Angles/577162: The measure of an angle is 34°. What is the measure of a complementary angle? 1 solutions Answer 370094 by Alan3354(30983)   on 2012-02-23 18:19:12 (Show Source): You can put this solution on YOUR website! The measure of an angle is 34°. What is the measure of a complementary angle? ---------- (90 - 34) degs

test/577165: What is a half number called 1 solutions Answer 370092 by Alan3354(30983)   on 2012-02-23 18:17:56 (Show Source): You can put this solution on YOUR website! What is a half number called ---------- A half number, I suppose.

�t�e�s�t/577159: Please Solve and show work!!!!! due tomorrow 60. 3|v-3|=9 61. 2|d+4|=8 62. |4f+1|-2=5 63. |3t-2|+6=2 64. 4|2y-3|-1=11 65. 3|x+2|+4=13 66. -4|k|=12 67. |-3n|-2=4 1 solutions Answer 370091 by Alan3354(30983)   on 2012-02-23 18:17:07 (Show Source): You can put this solution on YOUR website! Please Solve and show work!!!!! due tomorrow 60. 3|v-3|=9 Divide by 3 |v-3| = 3 Then, (v-3) = 3 v = 6 ------ Or, -(v-3) = 3 v-3 = -3 v = 0 ------------ Do the others the same way. ------- 61. 2|d+4|=8 62. |4f+1|-2=5 63. |3t-2|+6=2 64. 4|2y-3|-1=11 65. 3|x+2|+4=13 66. -4|k|=12 67. |-3n|-2=4

Graphs/577148: compare the graph of each function with the graph of f(x)= x^2 1.g(x)=x^2-2 2.g(x)=2\3x^2 3.g(x)=5x^2+3 4.g(x)=-x^2+4 can u please help. Thank You 1 solutions Answer 370086 by Alan3354(30983)   on 2012-02-23 17:58:57 (Show Source): You can put this solution on YOUR website! compare the graph of each function with the graph of f(x)= x^2 1.g(x)=x^2-2 2.g(x)=2\3x^2 3.g(x)=5x^2+3 4.g(x)=-x^2+4 -------------- dl the FREE graph software at http://www.padowan.dk ------ Use Insert, then the function

Word_Problems_With_Coins/577032: 1. Tanya has 60¢ in dimes and nickels. She has the same number of dimes as nickels. How many of each does she have? 1 solutions Answer 370059 by Alan3354(30983)   on 2012-02-23 16:20:38 (Show Source): You can put this solution on YOUR website! 1. Tanya has 60¢ in dimes and nickels. She has the same number of dimes as nickels. How many of each does she have? ------------- Each pair is 15 cents. 60/15 = 4 of each

Linear-equations/577052: The graph of which of the following equations contains the points (2, 3) and (3, 2)? 1 solutions Answer 370058 by Alan3354(30983)   on 2012-02-23 16:18:21 (Show Source): You can put this solution on YOUR website! The graph of which of the following equations contains the points (2, 3) and (3, 2)? ------------- y = -x + 5 x + y = 5

Trigonometry-basics/577005: To land, a plane will approach an airport at a 4 percent angle of depression. If the plane is flying at 30,000 ft, find the ground distance from the airport the the point directly below the plane when the pilot begins descending.Round to the nearest 10,000 ft. 1 solutions Answer 370057 by Alan3354(30983)   on 2012-02-23 15:49:20 (Show Source): You can put this solution on YOUR website! To land, a plane will approach an airport at a 4 percent angle of depression. If the plane is flying at 30,000 ft, find the ground distance from the airport the the point directly below the plane when the pilot begins descending.Round to the nearest 10,000 ft. ------------ 4% is not an angle.

Quadratic-relations-and-conic-sections/577027: find the center and radius of each circle (x-0.5)^2 + (y+0.5)^2 = 0.25 1 solutions Answer 370039 by Alan3354(30983)   on 2012-02-23 15:08:58 (Show Source): You can put this solution on YOUR website! (x-0.5)^2 + (y+0.5)^2 = 0.25 --------------- Center @ (0.5,-0.5) Radius = 0.5

Exponential-and-logarithmic-functions/577014: what is pi 1 solutions Answer 370037 by Alan3354(30983)   on 2012-02-23 14:46:53 (Show Source): You can put this solution on YOUR website! what is pi -------------------- It's the ratio of the circumference of a circle to the diameter. pi = C/d --------- Use a search engine to hear more about it.

Linear-equations/577015: find an equation of the line described below. Write the equation in slope-intercept form(solve for y), when possibe through (8,6), parallel to the y-axis 1 solutions Answer 370036 by Alan3354(30983)   on 2012-02-23 14:40:16 (Show Source): You can put this solution on YOUR website! find an equation of the line described below. Write the equation in slope-intercept form(solve for y), when possibe through (8,6), parallel to the y-axis -------- Parallel to the y-axis --> x is constant ---- x = 8 is the equation. ---- Slope-intercept form is not possible as the slope is undefined and there is no y-intercept, it's parallel to the y-axis.

Percentage-and-ratio-word-problems/577012: a tv set is marked down $72, to be placed on sale. If this is a 4% decrease from the original price, what was the selling price before the sale? 1 solutions Answer 370035 by Alan3354(30983)   on 2012-02-23 14:30:17 (Show Source): You can put this solution on YOUR website! a tv set is marked down $72, to be placed on sale. If this is a 4% decrease from the original price, what was the selling price before the sale? --------------- If you mean marked down to $72: $72 is 96% of the OP (original price) (100% - 4%) 96% = 0.96 OP*0.96 = 72 OP = 72/0.96 = $75 ----------------- If you mean the reduction of 4% is a reduction of $72: 4% = $72 1% = $18 100% = $1800

Money_Word_Problems/576976: a company produces a pair of in-line skates for 43053. in return, it sells a pair for 89.95. if the total cost are 742.72 how many pairs should the company produce and sell in order to break even 1 solutions Answer 370032 by Alan3354(30983)   on 2012-02-23 13:26:32 (Show Source): You can put this solution on YOUR website! a company produces a pair of in-line skates for 43053. in return, it sells a pair for 89.95. if the total cost are 742.72 how many pairs should the company produce and sell in order to break even --------------------- a company produces a pair of in-line skates for 43053. ??? I don't get it.

�t�e�s�t/576936: 1. find the value of cos 7pi/6 sin 3 pi/4 + sin 7pi/6 cos 3pi/4 1 solutions Answer 370027 by Alan3354(30983)   on 2012-02-23 11:39:25 (Show Source): You can put this solution on YOUR website! 1. find the value of cos 7pi/6 sin 3 pi/4 + sin 7pi/6 cos 3pi/4 -------------- Use the sum of angles formula for sines. sin(A+B) = sin(A)cos(B) + sin(B)cos(A) ---- --> sin(3pi/4 + 7pi/6) = sin(23pi/12) -----------

Probability-and-statistics/576926: how do you round 67.2 to one decimal place 1 solutions Answer 370026 by Alan3354(30983)   on 2012-02-23 11:27:06 (Show Source): You can put this solution on YOUR website! how do you round 67.2 to one decimal place ----------- 67.2 is one decimal

Volume/576930: Given that the length of the side of a square-based prism is 10 centimeters, and its volume is 1000 cubic centimeters, find its height. 1 solutions Answer 370025 by Alan3354(30983)   on 2012-02-23 11:02:36 (Show Source): You can put this solution on YOUR website! Given that the length of the side of a square-based prism is 10 centimeters, and its volume is 1000 cubic centimeters, find its height. -------- Vol = L*W*H 1000 = 10*10*h ---------- It's a cube. PS Prism is where convex live.

Trigonometry-basics/576906: sin15degree 1 solutions Answer 370024 by Alan3354(30983)   on 2012-02-23 10:48:22 (Show Source): You can put this solution on YOUR website! sin15degree -------- sin(15) =~ 0.258819 ------------ For the exact value: sin(15) = sin(30/2) = = =

Trigonometry-basics/576898: (sinx)(cosx)(tanx)+(cos^2x)=1 1 solutions Answer 370023 by Alan3354(30983)   on 2012-02-23 10:20:56 (Show Source): You can put this solution on YOUR website! (sinx)(cosx)(tanx)+(cos^2x)=1 --------- Change tan(x) to sin(x)/cos(x) ----- Changing to sines and cosines usually helps.

test/576888: I'm in math 1200 1 solutions Answer 370022 by Alan3354(30983)   on 2012-02-23 09:51:22 (Show Source): You can put this solution on YOUR website! I'm in math 1200 ------------ What do you plan to do next?

Linear_Equations_And_Systems_Word_Problems/576896: what are the five consecutive numbers whose sum is 100 1 solutions Answer 370021 by Alan3354(30983)   on 2012-02-23 09:48:07 (Show Source): You can put this solution on YOUR website! what are the five consecutive numbers whose sum is 100 ------------ 100/5 = 20, the middle number

Numbers_Word_Problems/576892: find three consecutive odd numbers whose sum is 157 1 solutions Answer 370020 by Alan3354(30983)   on 2012-02-23 09:28:22 (Show Source): You can put this solution on YOUR website! find three consecutive odd numbers whose sum is 157 ------------ The sum would be a multiple of 3. 157 is not --> no solution. 49 + 51 + 53 = 153 51 + 53 + 55 = 159 ---------------- This is also true for 3 even numbers, or any 3 evenly spaced numbers. ----- (n-s) + n + (n+s) = 3n for any value of s.

test/576883: How fast would you have to travel across the Earth in order to keep the sun in the exact same position in the sky above your head? Hint: The radius of the Earth is approximately 3960 miles 1 solutions Answer 370017 by Alan3354(30983)   on 2012-02-23 09:09:29 (Show Source): You can put this solution on YOUR website! How fast would you have to travel across the Earth in order to keep the sun in the exact same position in the sky above your head? Hint: The radius of the Earth is approximately 3960 miles ----------------- Using 1 revolution in 24 hours: It depends on your latitude. At the poles, you can stand still and just rotate. ----------- At the equator, it's 3960*2*pi/24 mi/hr = 330*pi mi/hr ------------ At other points, it's 330*pi*cos(latitude)

Functions/576730: f(x)=1/2x+8 1 solutions Answer 369971 by Alan3354(30983)   on 2012-02-22 22:28:50 (Show Source): You can put this solution on YOUR website! Do you have a question?